sys_RelationshipContentFinder Order By Parameter

I would like to use the “order by” field for a slot using the “sys_RelationshipContentFinder” content finder, but it seems like specifying a field and direction in this parameter field is overridden with the order of the items in the slot. Is there a way I can do this? I have tried using an auto slot approach but I need the content items to be specified in the slot and not pulled from a directory path.